I wouldn't use tall tubes for fruit trees. 2 or 3' will give good rabbit control, good weed control, 5' high wire fence around the tree, wider than branches and where deer can't reach them. Periodically lifting tubes to make sure no nest and such are forming. The tube will also protect from herbicide over spray if you accidently hit the area of the trunk.
I like to cut the tube all the way vertically and let the tube wrap relatively tight around the trunk. This keeps varmits from living or getting to the trunk to girdle and still protects from overspray. Then in the spring you can unroll the tube and clip off any branches that may have sprung out from the protected area of the trunk. I always have a few. Then put tube back on. It spreads with the growth of the trunk. I've yet to have any issues doing this with my fruit trees.